<template>
    <el-container>
<!--      头部区域-->
      <el-header>
        <div>
          <img src="../assets/heima.png" alt="">
          <span>电商后台管理系统</span>
        </div>
        <el-button type="info" @click="logout">退出</el-button>
      </el-header>
<!--      页面主体区域-->
      <el-container>
<!--        侧边栏-->
        <el-aside :width="isCollapse ? '64px' : '200px' ">
          <!--侧边栏菜单区域-->
          <div class="toggle-button" @click="toggleCollapse">|||</div>
          <el-menu
              background-color="#333744"
              text-color="#fff"
              active-text-color="#409bff"
              unique-opened
              :collapse="isCollapse"
              :collapse-transition="isCollapse"
              router>
<!--            一级菜单-->
            <el-submenu :index="item.id + '' " v-for="item in menulist" :key="item.id" >
<!--              一级菜单的模板区域-->
              <template slot="title">
<!--                图标-->
                <i :class="iconsObj[item.id]"></i>
<!--                文本-->
                <span>{{item.authName}}</span>
              </template>
<!--              二级菜单-->
              <el-menu-item v-for="subItem in item.children" :index="'/' + subItem.path + '' ">
                <template slot="title">
<!--                图标-->
                  <i class="el-icon-menu"></i>
<!--                文本-->
                  <span>{{subItem.authName}}</span>
                </template>
              </el-menu-item>
            </el-submenu>
          </el-menu>
        </el-aside>

<!--        右侧内容主题-->
        <el-main>
          <router-view/>
        </el-main>
      </el-container>
    </el-container>
</template>

  <script>
  export default {
    name: "Home",
    data() {
      return {
        //左侧菜单数据
        menulist: [],
        iconsObj: {
          '125': 'iconfont icon-user',
          '103': 'iconfont icon-tijikongjian',
          '101': 'iconfont icon-shangpin',
          '102': 'iconfont icon-danju',
          '145': 'iconfont icon-baobiao',
        },
        //是否折叠
        isCollapse: false
      }
    },
    created() {
      this.getMenuList()
    },
    methods: {
      logout() {
        window.sessionStorage.clear()
        this.$router.push('/login')
      },
      //获取所有菜单
      async getMenuList() {
        const {data: res} = await this.$http.get('menus')
        if(res.meta.status !== 200) return this.$message.error(res.meta.msg)
        this.menulist = res.data
      },
      // 点击按钮切换菜单的折叠与展开
      toggleCollapse() {
        this.isCollapse = !this.isCollapse
      }
    }
  }
</script>

<style lang="less" scoped>
  .el-container {
    height: 100%;
  }
  .el-header {
    background-color: #373d41;
    display: flex;
    justify-content: space-between;
    padding-left: 0;
    align-items: center;
    color: #fff;
    font-size: 20px;
    > div {
      display: flex;
      align-items: center;
      span {
        margin-left: 15px;
      }
    }
  }
  .el-aside {
    background-color: #333744;
  }
  .el-main {
    background-color: #eaedf1;
  }

  .iconfont {
    margin-right: 10px;
  }

  .el-submenu {
    width: 200px;
  }

  .toggle-button {
    background-color: #4a5064;
    font-size: 10px;
    line-height: 24px;
    text-align: center;
    letter-spacing: 0.2em;
    cursor: pointer;
    color: #fff;
  }
</style>